projects
/
musl
/ blobdiff
commit
grep
author
committer
pickaxe
?
search:
re
summary
|
shortlog
|
log
|
commit
|
commitdiff
|
tree
raw
|
inline
| side by side
add timerfd interfaces (untested)
[musl]
/
src
/
stdio
/
popen.c
diff --git
a/src/stdio/popen.c
b/src/stdio/popen.c
index
1d33e9d
..
4f9d6e9
100644
(file)
--- a/
src/stdio/popen.c
+++ b/
src/stdio/popen.c
@@
-1,4
+1,11
@@
#include "stdio_impl.h"
#include "stdio_impl.h"
+#include "syscall.h"
+
+static inline void nc_close(int fd)
+{
+ __syscall(SYS_close, fd);
+}
+#define close(x) nc_close(x)
FILE *popen(const char *cmd, const char *mode)
{
FILE *popen(const char *cmd, const char *mode)
{
@@
-31,9
+38,9
@@
FILE *popen(const char *cmd, const char *mode)
close(p[1]);
return NULL;
case 0:
close(p[1]);
return NULL;
case 0:
-
dup2(p[1-op], 1-op
);
- close(p[0]);
- close(p[1]);
+
if (dup2(p[1-op], 1-op) < 0) _exit(127
);
+
if (p[0] != 1-op)
close(p[0]);
+
if (p[1] != 1-op)
close(p[1]);
execl("/bin/sh", "sh", "-c", cmd, (char *)0);
_exit(127);
}
execl("/bin/sh", "sh", "-c", cmd, (char *)0);
_exit(127);
}